Direct Methane to Methanol Conversion: An Overview of Non‐Syn Gas Catalytic Strategies

The Chemical Record, Год журнала: 2025, Номер unknown

Опубликована: Янв. 16, 2025

Abstract Direct methane to methanol conversion is a dream reaction in industrial chemistry, which takes inspiration from the biological production catalysed by monooxygenase enzymes (MMOs). Over years, extensive studies have been conducted on this topic bioengineering MMOs, and tailoring methods isolate MMOs active form. Similarly, remarkable achievements noted other activation strategies such as use of heterogeneous catalysts or molecular catalysts. In review, we outline metabolism performed methanotrophs detail latest advancements site structures catalytic mechanisms both types MMOs. Also, recent progress bioinspired approaches using various catalysts, especially first‐row transition metal zeolites mechanistic insights are discussed. addition, complexes “Periana catalyst” for through methyl ester formation presence strong acids also detailed. Compared zeolites‐mediated field, utilisation application still its nascent phase further research required overcome limitations these effectively.

Язык: Английский

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Methane Bubbled Through Seawater Can be Converted to Methanol With High Efficiency

Advanced Science, Год журнала: 2025, Номер unknown

Опубликована: Янв. 21, 2025

Partial oxidation of methane (POM) is achieved by forming air-methane microbubbles in saltwater to which an alternating electric field applied using a copper oxide foam electrode. The solubility increased putting it contact with water containing dissolved KCl or NaCl (3%). Being fully dispersed as (20-40 µm diameter), reacts more hydroxyl radicals (OH·) at the gas-water interface. voltage (100 mV) generates two synergistic POM processes dominated Cl- → Cl· + e- and O2 -• under positive negative potentials, respectively. By tuning frequency amplitude, extent path process can be precisely controlled so that than 90% methanol selectively formed compared byproducts, dichloromethane, acetic acid. conversion yield estimated 57% rate approximately 887 µM h-1. This method appears have potential for removing from air seawater converting higher-concentration sources into value-added methanol.

Язык: Английский

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Investigation on performance optimization of a novel microreactor with multiple-pulsation combustion for methanol steam reforming to hydrogen production for proton exchange membrane fuel cell

Applied Energy, Год журнала: 2025, Номер 384, С. 125488 - 125488

Опубликована: Фев. 11, 2025

Язык: Английский

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Catalytic materials based on metals (ions) used in the upcycling of plastics and polymers into fuels and valuable chemicals as part of sustainable development

Materials Science and Engineering R Reports, Год журнала: 2024, Номер 162, С. 100881 - 100881

Опубликована: Ноя. 23, 2024

Язык: Английский

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Unveiling Zeolite Confinement Effects on N₂O Decomposition Reaction over [Cu₂(μ-O)]²⁺ Active Sites

Industrial & Engineering Chemistry Research, Год журнала: 2025, Номер unknown

Опубликована: Фев. 25, 2025

Язык: Английский

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Recent advances on oxidation of alcohols over various types of materials as effective catalysts: An overview

Coordination Chemistry Reviews, Год журнала: 2024, Номер 526, С. 216372 - 216372

Опубликована: Дек. 5, 2024

Язык: Английский

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ABO₄ as an Active Catalyst Structure for Direct Partial CH₄ Oxidation as Identified through Screening of Supported Catalysts

ACS Catalysis, Год журнала: 2024, Номер 15(2), С. 697 - 705

Опубликована: Дек. 24, 2024

In the present study, 76 different metal-oxide-supported-transition-metal catalysts were prepared using 11 metal oxides (MgO, Al2O3, SiO2, TiO2, V2O5, ZrO2, Nb2O5, MoO3, Ta2O5, WO3, and La2O3) seven 3d metals (V, Mn, Fe, Co, Ni, Cu, Zn). The supported catalysts, along with single oxides, screened to identify catalytically active lattice oxygen structures for partial oxidation of CH4 formaldehyde methanol. Fe/MoO3, Fe/V2O5, particularly Fe/Nb2O5 found be highly effective. Structural analysis Fe sites in was performed high-energy-resolution-fluorescence-detected K-edge X-ray absorption near-edge structure spectroscopy, revealing that FeNbO4, FeMoO4, FeVO4 species Fe/Nb2O5, respectively, are responsible their partial-oxidation activities. contrast, Fe2O3 formed Fe/Al2O3, Fe/SiO2, Fe/Ta2O5, Fe/WO3 complete CO2 than oxidation, as MgFe2O4, LaFeO3, TiFe2O5 Fe/MgO, Fe/La2O3, Fe/TiO2, interstitial solid solution Fe3+ ZrO2 generated Fe/ZrO2. Furthermore, while Fe/WO4 ineffective FeWO4 by a hydrothermal method exhibits high selectivity oxidation. Additionally, previous studies have shown CuWO4 CuMoO4 Accordingly, ABO4 (where A is B group 5 or 6 metal) indicated viable design basis development

Язык: Английский

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Direct partial oxidation of low-concentration methane to methanol with copper-based clay catalysts

International Journal of Hydrogen Energy, Год журнала: 2024, Номер 81, С. 535 - 547

Опубликована: Июль 26, 2024

Язык: Английский

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Direct Methane to Methanol Conversion Technologies Methods, Applications, and Future Prospects

Elsevier eBooks, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

Язык: Английский

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Single-step conversion of methane-steam to methanol on single-atom Cu1/γ-Al2O3 catalyst prepared via electrostatic anchoring

Applied Catalysis B Environment and Energy, Год журнала: 2024, Номер unknown, С. 124648 - 124648

Опубликована: Сен. 1, 2024

Язык: Английский

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